Big Idea 5

Shayla is observing birds flying south for the winter. Which of the following statements is true?

• Birds avoid gravity by flying very quickly.

• Birds fly by using forces to overcome gravity.

• Birds fly by using heat energy to overcome gravity.

• Birds are very light so there is no pull from gravity affecting them.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Kelly is observing two stars in the night sky. Kelly notices that Star A appears brighter than Star B. Which most likely explains why Star A appears brighter to Kelly?

• Star A is smaller than Star B.

• Star A is is the same size as Star B.

• Star A is closer to the Earth than Star B.

• Star A is farther away from Earth than Star B.

Some groups of stars seem to form a pattern in the sky. These star patterns can appear different when viewed with the aid of a telescope. Which is a way that a star pattern could appear different when viewed through a telescope?

• Less stars will be observed.

• More stars will be observed.

• Less stars will be observed.

• The stars would appear less bright.

The Sun is a star which gives off energy. Which forms of the Sun’s energy reach the Earth?

• light and heat

• light and sound

• heat and electrical

• heat and mechanical

Preston and Sarah are both observing stars. Preston is observing the stars in the night sky and drawing a diagram. Sarah is comparing and contrasting the brightness of different stars and recording her observations. Which student is doing a scientific investigation?

• Preston only

• Sarah only

• Both Preston and Sarah

• Neither Preston nor Sarah

Tags

NGSS.MS-ESS1-3

A scientist recorded data, charts, and observations in her science journal during an investigation. Later she compared her data, charts, and observations with another scientist who completed the same investigation. Why did the two scientists compare their results?

• Scientists want to make sure they have different results.

• Scientists question, discuss, and check each other’s explanations

• Scientists will change their results after discussing each other’s explanations.

• Scientists compare their results so they do not have to repeat the investigation

Tags

NGSS.MS-LS2-4

A group of students set up the demonstration to show how stars appear from Earth. Flashlights A and B are each twice as bright as flashlights C and D. Flashlights A, B, and C represent other stars. Flashlight D represents the Sun. What does this demonstration show?

• The Sun appears bigger from Earth than other stars because it is closest.

• The Sun appears brighter from Earth than other stars because it is the hottest.

• The Sun appears bigger from Earth than other stars because it is the brightest.

• The Sun appears brighter from Earth than other stars because it is the biggest.

Tags

NGSS.MS-ESS1-1

A star named Sirius appears as the brightest star in the nighttime sky, even though a star named Pollux actually gives off more light. Which of the following statements best explains why Sirius appears brighter than Pollux in our nighttime sky?

• Sirius is larger than Pollux.

• Sirius is closer to Earth than Pollux.

• Sirius has different gases than Pollux.

• Sirius has a different color than Pollux.

Sharon is using a telescope to observe stars in the night sky. Why does Sharon use a telescope to observe stars in the night sky?

• telescopes allow us to see more stars

• telescopes make stars appear smaller

• telescopes let scientists see fewer stars

• telescopes make stars appear farther away

Which of the following best describes the concept of 'Big Idea 5' in science?

• The interaction between different forms of energy

• The role of gravity in the universe

• The interconnectedness of Earth's systems

• The evolution of species over time

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-6